Home GPU Comparison ATI Radeon HD 4870 X2 vs ATI FirePro V7900

ATI Radeon HD 4870 X2 vs ATI FirePro V7900

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 2GB VRAM FirePro V7900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FirePro V7900 's Advantages
Released 2 years and 9 months late
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (160.0GB/s vs 115.2GB/s)
480 additional rendering cores
Lower TDP (150W vs 286W)

Score

Benchmark

FP32 (float)
Radeon HD 4870 X2
1.2 TFLOPS
FirePro V7900 +54%
1.856 TFLOPS
VS

Graphics Card

Aug 2008
Release Date
May 2011
Radeon R700
Generation
FirePro
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
1250 MHz

Memory

1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
115.2GB/s
Bandwidth
160.0GB/s

Render Config

-
SM Count
-
10
Compute Units
20
800
Shading Units
1280
40
TMUs
80
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
512 KB

Theoretical Performance

12.00 GPixel/s
Pixel Rate
23.20 GPixel/s
30.00 GTexel/s
Texture Rate
58.00 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
1.856 TFLOPS
240.0 GFLOPS
FP64 (double)
464.0 GFLOPS

Graphics Processor

R700
GPU Name
Cayman
R700 XT (215-0669045)
GPU Variant
Cayman PRO GL
TeraScale
Architecture
TeraScale 3
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.956 billion
Transistors
2.64 billion
256 mm²
Die Size
389 mm²

Board Design

286W
TDP
150W
600 W
Suggested PSU
450 W
2x DVI 1x S-Video
Outputs
4x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin

Graphics Features

10.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
5.0

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