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GPU Comparison
NVIDIA GeForce 8600 GT vs AMD Radeon HD 7990
NVIDIA GeForce 8600 GT vs AMD Radeon HD 7990
VS
NVIDIA GeForce 8600 GT
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AMD Radeon HD 7990
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We compared two Desktop platform GPUs: 512MB VRAM GeForce 8600 GT and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 8600 GT 's Advantages
Lower TDP (47W vs 375W)
AMD Radeon HD 7990 's Advantages
Released 6 years late
Boost Clock1000MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (288.0GB/s vs 22.40GB/s)
2016 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8600 GT
0.076 TFLOPS
Radeon HD 7990
+5289%
4.096 TFLOPS
GeForce 8600 GT
VS
Radeon HD 7990
Graphics Card
Apr 2007
Release Date
Apr 2013
GeForce 8
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
950 MHz
-
Boost Clock
1000 MHz
700 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
3GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
384bit
22.40GB/s
Bandwidth
288.0GB/s
Render Config
-
Compute Units
32
4
SM Count
-
32
Shading Units
2048
16
TMUs
128
8
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
32 KB
L2 Cache
768 KB
-
-
-
Theoretical Performance
4.320 GPixel/s
Pixel Rate
32.00 GPixel/s
8.640 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
76.16 GFLOPS
FP32 (float)
4.096 TFLOPS
-
FP64 (double)
1024 GFLOPS
Board Design
47W
TDP
375W
200 W
Suggested PSU
750 W
2x DVI 1x S-Video
Outputs
1x DVI 4x mini-DisplayPort 1.2
None
Power Connectors
2x 8-pin
Graphics Processor
G84
GPU Name
Malta
G84-303-A2
GPU Variant
Malta XT (215-0849026)
Tesla
Architecture
GCN 1.0
TSMC
Foundry
TSMC
80 nm
Process Size
28 nm
0.289 billion
Transistors
4.313 billion
169 mm²
Die Size
365 mm²
Graphics Features
11.1 (10_0)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
1.1
CUDA
-
4.0
Shader Model
5.1
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