FireStream 9250 vs GeForce GT 640 Rev. 2
We compared two Desktop platform GPUs: 1024MB VRAM FireStream 9250 and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
FireStream 9250 's Advantages
Larger VRAM bandwidth (63.55GB/s vs 40.06GB/s)
416 additional rendering cores
GeForce GT 640 Rev. 2 's Advantages
Released 4 years and 11 months late
Lower TDP (49W vs 150W)
Score
Benchmark
FP32 (float)
FireStream 9250
+24%
1000
GeForce GT 640 Rev. 2
803
Graphics Card
Jun 2008
Release Date
May 2013
FireStream
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x8
Clock Speeds
993 MHz
Memory Clock
1252 MHz
Memory
1024MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
64bit
63.55GB/s
Bandwidth
40.06GB/s
Render Config
10
Compute Units
-
800
Shading Units
384
40
TMUs
32
16
ROPs
8
16 KB (per CU)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
512 KB
Theoretical Performance
10.00 GPixel/s
Pixel Rate
8.368 GPixel/s
25.00 GTexel/s
Texture Rate
33.47 GTexel/s
1000 GFLOPS
FP32 (float)
803.3 GFLOPS
200.0 GFLOPS
FP64 (double)
33.47 GFLOPS
Board Design
150W
TDP
49W
450 W
Suggested PSU
200 W
1x DVI
Outputs
1x DVI
1x HDMI 1.4a
1x VGA
1x 6-pin
Power Connectors
None
Graphics Processor
RV770
GPU Name
GK208
RV770 PRO
GPU Variant
GK208-400-A1
TeraScale
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.956 billion
Transistors
1.02 billion
256 mm²
Die Size
87 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
3.5
4.1
Shader Model
5.1