AMD FireStream 9250 vs NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 1024MB VRAM FireStream 9250 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD FireStream 9250 's Advantages
Larger VRAM bandwidth (63.55GB/s vs 28.51GB/s)
416 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Released 4 years late
More VRAM (2GB vs 1024GB)
Lower TDP (65W vs 150W)
Score
Benchmark
FP32 (float)
FireStream 9250
+44%
1 TFLOPS
GeForce GT 640
0.693 TFLOPS
Graphics Card
Jun 2008
Release Date
Jun 2012
FireStream
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
993 MHz
Memory Clock
891 MHz
Memory
1024MB
Memory Size
2GB
GDDR3
Memory Type
DDR3
256bit
Memory Bus
128bit
63.55GB/s
Bandwidth
28.51GB/s
Render Config
10
Compute Units
-
-
-
-
800
Shading Units
384
40
TMUs
32
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
10.00 GPixel/s
Pixel Rate
7.216 GPixel/s
25.00 GTexel/s
Texture Rate
28.86 GTexel/s
-
-
-
1000 GFLOPS
FP32 (float)
692.7 GFLOPS
200.0 GFLOPS
FP64 (double)
28.86 GFLOPS
Board Design
150W
TDP
65W
450 W
Suggested PSU
250 W
1x DVI
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin
Power Connectors
None
Graphics Processor
RV770
GPU Name
GK107
RV770 PRO
GPU Variant
GK107-300-A2
TeraScale
Architecture
Kepler
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.956 billion
Transistors
1.27 billion
256 mm²
Die Size
118 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
-
CUDA
3.0
4.1
Shader Model
5.1
