Home GPU Comparison AMD Radeon HD 6790 vs AMD Radeon HD 6970 X2

AMD Radeon HD 6790 vs AMD Radeon HD 6970 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 2GB VRAM Radeon HD 6970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages
Lower TDP (150W vs 375W)
AMD Radeon HD 6970 X2 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (176.0GB/s vs 134.4GB/s)
736 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6790
1.344 TFLOPS
Radeon HD 6970 X2 +101%
2.703 TFLOPS
VS

Graphics Card

Apr 2011
Release Date
Unknown
Northern Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1050 MHz
Memory Clock
1375 MHz

Memory

1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
134.4GB/s
Bandwidth
176.0GB/s

Render Config

10
Compute Units
24
-
-
-
800
Shading Units
1536
40
TMUs
96
16
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

13.44 GPixel/s
Pixel Rate
28.16 GPixel/s
33.60 GTexel/s
Texture Rate
84.48 GTexel/s
-
-
-
1344 GFLOPS
FP32 (float)
2.703 TFLOPS
-
-
-

Board Design

150W
TDP
375W
450 W
Suggested PSU
750 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
3x 8-pin

Graphics Processor

Barts
GPU Name
Antilles
Barts LE (215-0798002)
GPU Variant
Antilles XT (215-0807027)
TeraScale 2
Architecture
TeraScale 3
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
2.64 billion
255 mm²
Die Size
389 mm²

Graphics Features

11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
5.0

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