AMD Radeon R9 295X2 vs AMD Radeon HD 7990
AMD Radeon R9 295X2
$1,499
AMD Radeon HD 7990
$1,000
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2x 2816 Shaders
8GB (2x 4GB) GDDR5
1018MHz
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2x 2048 Shaders
6GB (2x 3GB) GDDR5
1000MHz
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Peak AI Performance
11.47 TFLOPS
FP32
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Peak AI Performance
8.19 TFLOPS
FP32
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FP32
11.47 TFLOPS
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FP32
8.19 TFLOPS
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-
-
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-
-
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Form Factor
PCIe Card
2.1-Slots
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Form Factor
PCIe Card
2.0-Slots
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TDP
500W
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TDP
375W
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Power Connectors
-
2x 8-Pin
-
-
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Power Connectors
-
2x 8-Pin
-
-
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GB6 OpenCL N/A
0%
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GB6 OpenCL N/A
0%
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GB6 Metal N/A
0%
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GB6 Metal N/A
0%
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GB6 Vulkan N/A
0%
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GB6 Vulkan N/A
0%
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GB5 OpenCL N/A
0%
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GB5 OpenCL N/A
0%
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GB5 CUDA N/A
0%
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GB5 CUDA N/A
0%
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GB5 Metal N/A
0%
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GB5 Metal N/A
0%
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GB5 Vulkan N/A
0%
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GB5 Vulkan N/A
0%
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OCT 2020.1 N/A
0%
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OCT 2020.1 N/A
0%
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OCT Metal N/A
0%
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OCT Metal N/A
0%
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Peak AI
Performance
11.47 TFLOPS
FP32
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Peak AI
Performance
8.19 TFLOPS
FP32
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FP32
11.47 TFLOPS
-
-
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FP32
8.19 TFLOPS
-
-
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FP64
1.43 TFLOPS
-
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FP64
2.05 TFLOPS
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Pixel
Fillrate
65.152 GPixel/s
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Pixel
Fillrate
32 GPixel/s
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-
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-
-
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Texture
Fillrate
179.168 GTexel/s
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Texture
Fillrate
128 GTexel/s
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Manufacturer
AMD
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Manufacturer
AMD
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Chip Designer
AMD
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Chip Designer
AMD
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Architecture
GCN 2
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Architecture
GCN 1
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Family
Radeon R 200
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Family
Radeon HD 7000
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Codename
Hawaii
-
Variant
Vesuvius XT
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Codename
Tahiti
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Variant
New Zealand XT
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Market Segment
Desktop
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Market Segment
Desktop
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Release Date
4/8/2014
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Release Date
4/24/2013
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Foundry
TSMC
-
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Foundry
TSMC
-
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Fabrication Node
28nm
-
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Fabrication Node
28nm
-
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Die Size
2x 438 mm²
-
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Die Size
2x 352 mm²
-
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Transistor Count
2x 6.2 Billion
-
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Transistor Count
2x 4.3 Billion
-
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Transistor Density
14.16M/mm²
-
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Transistor Density
12.25M/mm²
-
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Form
PCIe Card
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Form
PCIe Card
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Shading Units
2x 2816 Shaders
-
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Shading Units
2x 2048 Shaders
-
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Texture Mapping Units
2x 176 TMUs
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Texture Mapping Units
2x 128 TMUs
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Render Output Units
2x 64 ROPs
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Render Output Units
2x 32 ROPs
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Compute Units
2x 44 CUs
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Compute Units
2x 32 CUs
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-
-
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-
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1018MHz
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950MHz Base
1000MHz
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L1
-
-
16KB/CU
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L1
-
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16KB/CU
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L2
1MB Shared
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L2
768KB Shared
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8GB (2x 4GB)
GDDR5
-
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6GB (2x 3GB)
GDDR5
-
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Bus Width
512Bit
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Bus Width
384Bit
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Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
320GB/s
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Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
288GB/s
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TDP
500W
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TDP
375W
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-
-
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-
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1x DVI-D Dual-Link
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-
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4x mini-DisplayPort 1.2
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1x DVI-I Dual-Link
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4x mini-DisplayPort 1.2
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Max Resolution
4096x2160
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Max Resolution
4096x2160
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Max Resolution Refresh Rate
60Hz
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Max Resolution Refresh Rate
60Hz
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Variable Refresh Rate
-
FreeSync
-
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Variable Refresh Rate
-
-
-
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Display Stream Compression (DSC)
Not Supported
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Display Stream Compression (DSC)
Not Supported
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Multi Monitor Support
4
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Multi Monitor Support
4
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Content Protection
HDCP 1.4
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-
-
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Model
VCE 2.0
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Model
VCE 1.0
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Codec
-
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AVC (H.264)
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Codec
-
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AVC (H.264)
-
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Model
UVD 4.2
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Model
UVD 3.2
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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-
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AVC (H.264)
-
-
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
-
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AVC (H.264)
-
-
-
-
-
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Direct X
12
Direct 3D
12_0
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Direct X
12
Direct 3D
11_1
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OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
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OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
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Shader Model
6.5
-
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GFX
7
-
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-
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Shader Model
6.5
-
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GFX
6
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1x Fan
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3x Fans
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Power Connectors
-
-
-
2x 8-Pin
-
-
-
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Power Connectors
-
-
-
2x 8-Pin
-
-
-
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Slots Required
2.1
PCIe Version
3.0
PCIe Lanes
16
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Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
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Multi GPU Support
Supported
Type
CrossFire XDMA
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Multi GPU Support
Supported
Type
2-way CrossFireX
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Height
115 mm (4.53 in)
Width
307 mm (12.09 in)
Depth
42 mm (1.65 in)
|
Height
115 mm (4.53 in)
Width
304 mm (11.97 in)
Depth
38 mm (1.5 in)
|
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