Radeon R9 295X2 vs Radeon HD 7990

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