AMD Radeon R7 250E vs NVIDIA GeForce GT 645

AMD Radeon R7 250E $109
NVIDIA GeForce GT 645
512 Shaders
1GB GDDR5
800MHz
288 Shaders
1GB GDDR5
776MHz
Peak AI Performance
820 GFLOPS
FP32
Peak AI Performance
0.89 TOPS
INT32
FP32
820 GFLOPS
FP32
890 GFLOPS
Form Factor
PCIe Card
1.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
55W
TDP
140W

Peak AI Performance

  • 8% slower vs GeForce GT 645
  • 9% faster vs Radeon R7 250E
Radeon R7 250E - 820 GFLOPS FP32
x1
GeForce GT 645 - 0.89 TOPS INT32
x1.09

FP32

  • 8% slower vs GeForce GT 645
  • 9% faster vs Radeon R7 250E
Radeon R7 250E - 820 GFLOPS FP32
x1
GeForce GT 645 - 890 GFLOPS FP32
x1.09
  • 22% slower vs GeForce GT 645
  • 28% faster vs Radeon R7 250E
Radeon R7 250E - 72GB/s
x1
GeForce GT 645 - 91.9GB/s
x1.28
  • 61% lower vs GeForce GT 645
  • 155% higher vs Radeon R7 250E
Radeon R7 250E - 55W
x1
GeForce GT 645 - 140W
x2.55
Manufacturer
AMD
Manufacturer
NVIDIA
Chip Designer
AMD
Chip Designer
NVIDIA
Architecture
GCN 1
Architecture
Fermi
Family
Radeon R 200
Family
GeForce 600
Codename
Cape Verde
-
Variant
Cape Verde Pro
Codename
NVCE
GF114
Variant
GF114-400-A1
Market Segment
Desktop
Market Segment
Desktop
Release Date
12/21/2013
Release Date
4/24/2012
Foundry
TSMC
Foundry
TSMC
Fabrication Node
28nm
Fabrication Node
40nm
Die Size
123 mm²
Die Size
332 mm²
Transistor Count
1.5 Billion
Transistor Count
2 Billion
Transistor Density
12.20M/mm²
Transistor Density
5.87M/mm²
Form
PCIe Card
Form
PCIe Card
Shading Units
512 Shaders
Shading Units
288 Shaders
Texture Mapping Units
32 TMUs
Texture Mapping Units
48 TMUs
Render Output Units
16 ROPs
Render Output Units
24 ROPs
-
-
Streaming Multiprocessors
6 SMs
Compute Units
8 CUs
-
-
-
800MHz
1552MHz Shader
776MHz
Peak AI Performance
820 GFLOPS
FP32
Peak AI Performance
0.89 TOPS
INT32
FP32
820 GFLOPS
FP32
890 GFLOPS
FP64
50 GFLOPS
FP64
70 GFLOPS
-
-
INT32
0.89 TOPS
Pixel Fillrate
12.8 GPixel/s
Pixel Fillrate
18.624 GPixel/s
Texture Fillrate
25.6 GTexel/s
Texture Fillrate
37.248 GTexel/s
L1
-
16KB/CU
L1
64KB/SM
-
L2
256KB Shared
L2
512KB Shared
1GB
GDDR5
1GB
GDDR5
Bus Width
128Bit
Bus Width
192Bit
Clock
1125MHz
Transfer Rate
4.5GT/s
Bandwidth
72GB/s
Clock
957MHz
Transfer Rate
3.8GT/s
Bandwidth
91.9GB/s
TDP
55W
TDP
140W
1x VGA
1x DVI-I Dual-Link
-
1x HDMI 1.4
-
2x DVI-I Dual-Link
1x mini-HDMI 1.3
-
Max Resolution
4096x2160
Max Resolution
2560x1600
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
3
Multi Monitor Support
2
Model
VCE 1.0
No Encoders
-
Codec
AVC (H.264)
-
-
Model
UVD 4.0
No Decoders
Codec
MPEG-1
MPEG-2
MPEG-4
VC-1
AVC (H.264)
-
-
-
-
-
Direct X
12
Direct 3D
11_1
Direct X
12
Direct 3D
11_0
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
OpenGL
4.6
OpenCL
1.1
-
-
Shader Model
6.5
-
-
GFX
6
-
-
-
-
Shader Model
5.1
CUDA
2.1
-
-
PureVideo HD
VP4
VDPAU
Feature Set C
1x Fan
1x Fan
Slots Required
1.0
PCIe Version
3.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
-
-
-
-
-
-
Height
111 mm (4.37 in)
Width
210 mm (8.27 in)
Depth
38 mm (1.5 in)
Change Comparison