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GPU Comparison
AMD Radeon HD 6850 vs NVIDIA GeForce GT 645 OEM
AMD Radeon HD 6850 vs NVIDIA GeForce GT 645 OEM
VS
AMD Radeon HD 6850
NVIDIA GeForce GT 645 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6850 's Advantages
Larger VRAM bandwidth (128.0GB/s vs 91.87GB/s)
672 additional rendering cores
NVIDIA GeForce GT 645 OEM 's Advantages
Released 1 years and 6 months late
Lower TDP (102W vs 127W)
Score
Benchmark
FP32 (float)
Radeon HD 6850
+66%
1.488 TFLOPS
GeForce GT 645 OEM
0.894 TFLOPS
Radeon HD 6850
VS
GeForce GT 645 OEM
Graphics Card
Oct 2010
Release Date
Apr 2012
Northern Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1000 MHz
Memory Clock
957 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
192bit
128.0GB/s
Bandwidth
91.87GB/s
Render Config
-
SM Count
6
12
Compute Units
-
960
Shading Units
288
48
TMUs
48
32
ROPs
24
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
384 KB
Theoretical Performance
24.80 GPixel/s
Pixel Rate
9.312 GPixel/s
37.20 GTexel/s
Texture Rate
37.25 GTexel/s
-
FP16 (half)
-
1488 GFLOPS
FP32 (float)
894.0 GFLOPS
-
FP64 (double)
74.50 GFLOPS
Graphics Processor
Barts
GPU Name
GF114
Barts PRO (215-0798006)
GPU Variant
-
TeraScale 2
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
1.95 billion
255 mm²
Die Size
332 mm²
Board Design
127W
TDP
102W
300 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
2x DVI 1x mini-HDMI 1.3a
1x 6-pin
Power Connectors
-
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
5.0
Shader Model
5.1
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