FireStream 9250 vs GeForce GT 645 OEM
We compared two Desktop platform GPUs: 1024MB VRAM FireStream 9250 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
FireStream 9250 's Advantages
512 additional rendering cores
GeForce GT 645 OEM 's Advantages
Released 3 years and 10 months late
Larger VRAM bandwidth (91.87GB/s vs 63.55GB/s)
Lower TDP (102W vs 150W)
Score
Benchmark
FP32 (float)
FireStream 9250
+11%
1000
GeForce GT 645 OEM
894
Graphics Card
Jun 2008
Release Date
Apr 2012
FireStream
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
993 MHz
Memory Clock
957 MHz
Memory
1024MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
192bit
63.55GB/s
Bandwidth
91.87GB/s
Render Config
10
Compute Units
-
-
SM Count
6
800
Shading Units
288
40
TMUs
48
16
ROPs
24
16 KB (per CU)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
384 KB
Theoretical Performance
10.00 GPixel/s
Pixel Rate
9.312 GPixel/s
25.00 GTexel/s
Texture Rate
37.25 GTexel/s
1000 GFLOPS
FP32 (float)
894.0 GFLOPS
200.0 GFLOPS
FP64 (double)
74.50 GFLOPS
Board Design
150W
TDP
102W
450 W
Suggested PSU
300 W
1x DVI
Outputs
2x DVI
1x mini-HDMI 1.3a
1x 6-pin
Power Connectors
-
Graphics Processor
RV770
GPU Name
GF114
RV770 PRO
GPU Variant
-
TeraScale
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.956 billion
Transistors
1.95 billion
256 mm²
Die Size
332 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
4.1
Shader Model
5.1